########################################################################################################################
#
# Library: QExt
#
# Copyright (C) 2022 ChengXueWen.
#
# License: MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
# to permit persons to whom the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all copies or substantial portions
# of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE  AUTHORS
# OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
########################################################################################################################


#-----------------------------------------------------------------------------------------------------------------------
# qext_configure_feature finction : Make subdirectories optional.
#-----------------------------------------------------------------------------------------------------------------------
function(qext_add_subdirectory dir)
    if ("${ARGN}" STREQUAL "")
        set(result ON)
    else ()
        qext_evaluate_expression(result ${ARGN})
    endif ()
    get_filename_component(_fullPath ${dir} ABSOLUTE)
    if (EXISTS ${_fullPath}/CMakeLists.txt)
        if (${result})
            add_subdirectory(${dir})
        endif ()
    endif ()
endfunction()
